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September 11, 2023
Projector lamps in window advertising applications
Now the projection lamp although the use of more and more widely, but generally still cast on the ground or wall, the human line of sight must be in the same space with the lamp body in order to see the effect. And because of the secondary reflection of light is absorbed, can only be used in a very dark place. So the projection lamp whether it is space or time, are everywhere subject to restrictions, which is it has been unable to popularize the reason.
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